Home / 170,720.43-235,673.91-99,086.61

Finding the Fourth Proportional to 170,720.43, 235,673.91 and 99,086.61

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Solution

The fourth proportional to 170,720.43, 235,673.91 and 99,086.61 is: 136,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,720.43 : 235,673.91 = 99,086.61 : x
  2. Step 2: Convert to fraction form
    170,720.43/235,673.91 = 99,086.61/x
  3. Step 3: Cross multiply
    170,720.43x = 235,673.91 × 99,086.61
  4. Step 4: Simplify right side
    170,720.43x = 23,352,128,807.35
  5. Step 5: Solve for x
    x = 23,352,128,807.35/170,720.43
  6. Step 6: Final answer
    x = 136,785.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.